Thermal runaway protection device and control system for energy storage cabin

Abstract

The energy storage cabin thermal runaway protection device comprises an energy storage cabin body, a plurality of installation areas are arranged in the energy storage cabin body, and energy storage units are arranged in the installation areas in the opening direction of the energy storage cabin body in a sliding mode; a normally-open blocking assembly is arranged between every two adjacent installation areas. The normally-open blocking assembly is arranged to be capable of blocking the two adjacent mounting areas when the fire blast phenomenon occurs in any mounting area. Compared with a traditional mode that a spraying mode is only adopted to deal with dangerous situations, the protection device provided with the normally-open blocking assembly and the energy storage units arranged in the sliding mode can rapidly push out the abnormal energy storage units in the face of the thermal runaway risk, meanwhile, the normally-open blocking assembly can separate all the installation areas, and the safety of the thermal runaway risk is improved. Therefore, the influence between the energy storage units is avoided, and further expansion of combustion is avoided.

Description

Technical Field

[0001] This application relates to the technical field of energy storage, and particularly to a thermal runaway protection device and control system for an energy storage cabin. Background Art

[0002] An energy storage power station is a new type of power system that combines wind energy, light energy, and energy storage technology. Wind power generation is usually achieved by a wind turbine and a generator. When the wind blows through the wind turbine, the wind turbine rotates and converts mechanical energy into electrical energy through a transmission device; light energy is generally converted from light energy into direct current by photovoltaic modules (such as photovoltaic panels), and then converted into alternating current through an inverter; finally, the energy formed by both will be stored in an energy storage device such as an energy storage cabin first. When electrical energy is needed, these stored energies are converted into electrical energy and released to meet the power demand.

[0003] Due to the advantages of high energy density, long cycle life, and environmental protection of lithium batteries, they are usually used in the energy storage units of energy storage power stations. However, they also have certain risks, such as the risk of thermal runaway, which can cause the combustion and explosion of the energy storage cabin in severe cases, posing a great potential safety hazard. At present, a sprinkler system is usually installed inside the energy storage cabin for prevention to control the risk in the shortest time; although the sprinkler system has certain positive significance for reducing the risk, there are a large number of lithium battery energy storage batteries in the energy storage cabin, which are placed densely, and the lithium battery burns rapidly, generating a huge flame in a short time. The traditional sprinkler system cannot quickly reduce the risk from the root cause. Therefore, it is very necessary to provide an energy storage power station that can quickly and efficiently respond to the thermal runaway phenomenon of the energy storage unit. Summary of the Invention

[0004] The purpose of this application is to provide a thermal runaway protection device and control system for an energy storage cabin to solve the above problems.

[0005] To achieve the above purpose, the technical solution of this application is as follows: In the first aspect, this application provides a thermal runaway protection device for an energy storage cabin body, including the energy storage cabin body. There are multiple installation areas in the energy storage cabin body, and energy storage units are slidably arranged in the installation areas along the opening direction of the energy storage cabin body; a normally open barrier assembly is arranged between adjacent two of the installation areas; the normally open barrier assembly is configured to be able to block adjacent two of the installation areas when an explosion occurs in any one of the installation areas.

[0006] Preferably, the normally open barrier assembly includes a guide tube and a barrier door. The guide tube is vertically arranged along the height direction of the energy storage cabin body, and the barrier door is slidably arranged along the guide tube.

[0007] Preferably, a plurality of sliding rings are slidably sleeved on the guiding tube, and one of the sliding rings at the bottom is connected to the first winch at the top of the energy storage cabin body through a rope; the barrier door includes a plurality of sealing plates hinged end to end in sequence; the hinged part between two of the sealing plates is hinged to the sliding ring; one of the sliding rings connected to the rope is hinged to the lower edge of one of the sealing plates at the bottom.

[0008] Preferably, a chute is radially penetrated in the guiding tube, and the chute extends along the length direction of the guiding tube; a connecting rod is provided on the sliding ring, the connecting rod is located in the chute and is in sliding fit with the chute, the rope is located in the guiding tube, one end of the rope is connected to the first winch, and the other end passes through a plurality of the sliding rings and is connected to one of the sliding rings at the bottom.

[0009] Preferably, a first motor is provided on the outer wall of the top of the energy storage cabin body, and the first winch is arranged on the outer wall of the top of the energy storage cabin body; there is also a second motor, the second motor is arranged on the outer wall of the bottom of the energy storage cabin body, a second winch is provided at the driving end of the second motor, and the second winch is connected to one of the sliding rings at the bottom through a rope.

[0010] Preferably, a first sliding part is provided in the installation area, a second sliding part is slidably arranged on the first sliding part, the second sliding part is slidably clamped with the first sliding part, an installation plate is provided on the second sliding part, and the energy storage unit is arranged on the installation plate; a nut slider is provided at the bottom of the installation plate, and a screw rod is rotatably arranged on the area of the energy storage cabin body below the installation plate, and the nut slider is in threaded fit with the screw rod.

[0011] Preferably, a plurality of quick-insert electrical connection blocks are provided at the bottom of any one of the installation areas, both ends of the quick-insert electrical connection block are respectively located inside and outside the energy storage cabin body, and electrical connection jacks are provided at both ends, and the openings of the electrical connection jacks face the opening of the energy storage cabin body.

[0012] Preferably, several of the quick-insert electrical connection blocks are arranged in a staggered manner along the arrangement direction of the safety area.

[0013] In a second aspect, a control system is further provided for the thermal runaway protection device of the energy storage cabin body described above, including a sensor component, a processor and a controller, and the sensor component is electrically connected to the controller; the sensor component is arranged in any one of the installation areas, and the processor is electrically connected to the controller.

[0014] Preferably, the sensor component includes a temperature sensor, a smoke sensor and a CO sensor.

[0015] The thermal runaway protection device for the energy storage cabin body disclosed in this application can quickly separate the combustion source from the root by setting up a normally open barrier component and a mechanism for sliding the energy storage unit, avoiding the further expansion of risks. Compared with the traditional method of only using spraying to deal with emergencies, the protection device with a normally open barrier component and a sliding energy storage unit provided in this application can quickly push out the abnormal energy storage unit when facing the thermal runaway risk. At the same time, the normally open barrier component can separate each installation area, thus preventing the influence between energy storage units and avoiding the further expansion of combustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of this application; Figure 2 is Figure 1 a partially enlarged schematic diagram at position A in Figure 3 It is a partially enlarged schematic diagram at the position of the screw in this application; Figure 4 It is a partially enlarged schematic diagram at the position of the sliding ring in this application; Figure 5 It is a schematic diagram of another angle of the overall structure of this application; Figure 6 It is a schematic diagram of the control system in this application.

[0017] In the figure: 1. Installation area; 10. Installation plate; 11. Screw; 110. Nut slider; 12. First sliding part; 13. Second sliding part; 14. Guide tube; 140. Sliding ring; 141. Chute; 142. Connecting rod; 15. Sealing plate; 2. Quick-insert electrical connection block; 3. Rope. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Now, the present application will be further described in detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, which only illustrate the basic structure of the present application in a schematic manner, so they only show the components related to the present application.

[0019] As Figures 1-6 shown, the present application provides a thermal runaway protection device for the energy storage cabin body, including the energy storage cabin body. There are multiple installation areas 1 in the energy storage cabin body, and energy storage units are slidably arranged in the installation areas 1 along the opening direction of the energy storage cabin body; normally open barrier components are arranged between adjacent two installation areas 1; the normally open barrier components are configured to be able to block the adjacent two installation areas 1 when an explosion occurs in any one of the installation areas 1.

[0020] The energy storage cabin body is of a box structure, and the energy storage units can be arranged in a structure such as a container.

[0021] The energy storage cabin body can be a cuboid structure, with an opening at the front side for the disassembly and assembly of energy storage units; a plurality of installation areas 1 are arranged side by side in the left-right direction, and an energy storage unit is provided in each installation area 1, and the energy storage unit is slidably arranged in the corresponding installation area 1, and the sliding direction is the front-back direction, that is, when sliding forward, the entire energy storage unit can slide out of the energy storage cabin body, and when sliding backward, it can slide into the energy storage cabin body. The sliding setting of the energy storage cabin body is mainly used to quickly push out the energy storage unit in thermal runaway from the energy storage cabin body to prevent it from affecting other energy storage units.

[0022] Moreover, a normally open barrier assembly is provided between adjacent two installation areas 1. Substantially, the normally open barrier assembly can be a barrier and sealing structure, that is, when a fire or other thermal runaway occurs in an energy storage unit in any safety area, all the normally open barrier assemblies will be blocked instantly to separate each safety area to the greatest extent, so as to prevent the energy storage units from affecting each other and causing secondary combustion.

[0023] It should be noted that the normally open barrier assembly adopted in the embodiment is in a non-working state when the entire energy storage cabin body is working normally, that is, the entire energy storage cabin body is a through structure under normal working conditions, that is, the installation areas 1 in the energy storage cabin body are all interconnected. This setting mechanism can ensure the ventilation effect of the entire energy storage cabin body to the greatest extent, and can reduce the occupancy ratio of the energy storage unit relative to the space of the energy storage cabin body to a certain extent (compared with multiple isolated areas), so that the air flow is more smooth and further ensure the heat dissipation effect.

[0024] By setting the mechanism of the normally open barrier assembly and the slidable energy storage unit, the present application can quickly separate the combustion source from the root and prevent the risk from further expanding. Compared with the traditional method of only using spraying to deal with emergencies, the protection device with the normally open barrier assembly and the slidable energy storage unit provided in the present application can quickly push out the abnormal energy storage unit when facing the thermal runaway risk, and at the same time, the normally open barrier assembly can separate each installation area 1, so as to prevent the energy storage units from affecting each other and prevent the further expansion of combustion.

[0025] The normally open barrier assembly adopts a sealing plate 15 hinged at the head and tail, which can be freely unfolded under the action of gravity to improve the timeliness of the barrier; and a plurality of sealing plates 15 are hinged to each other. When the normally open barrier assembly is in the normally open state, the sealing plates 15 stacked on each other can occupy less space, so as to be more conducive to the ventilation of the entire energy storage cabin body; In some further embodiments, the normally open barrier assembly includes a guide tube 14 and a barrier door. The guide tube 14 is vertically arranged along the height direction of the energy storage cabin body, and the barrier door is slidably arranged along the guide tube 14.

[0026] In some further embodiments, a plurality of sliding rings 140 are slidably sleeved on the guide tube 14. One of the sliding rings 140 at the bottom is connected to the first winch at the top of the energy storage cabin body through a rope 3; the barrier door includes a plurality of sealing plates 15 hinged end to end in sequence; the hinge between two sealing plates 15 is hinged to the sliding ring 140; one of the sliding rings 140 connected to the rope 3 is hinged to the lower edge of one of the sealing plates 15 at the bottom.

[0027] Specifically, the plurality of sealing plates 15 are hinged to each other, which can be achieved by pin - type cooperation, and the two sealing plates 15 hinged to each other can overlap in a staggered manner through the hinge. For example, three compression plates can form a Z - shaped structure.

[0028] When the rope 3 is pulled upward, the lowermost sealing plate 15 moves upward under the action of the sliding ring 140. As the sliding ring 140 continuously rises, the plurality of sealing plates 15 are folded together in a staggered manner, so as to realize the communication between adjacent two energy storage cabin bodies to ensure the ventilation performance under normal working conditions. When a fire occurs in one of the energy storage cabin bodies, the rope 3 is lowered. Under the action of gravity, the plurality of sealing plates 15 are unfolded, so as to realize the closure between adjacent two energy storage cabin bodies, so as to prevent the energy storage unit of the abnormal energy storage cabin body from affecting the energy storage unit in another energy storage cabin body.

[0029] In some further embodiments, a chute 141 is radially penetrated in the guide tube 14, and the chute 141 extends along the length direction of the guide tube 14; a connecting rod 142 is provided on the sliding ring 140, the connecting rod 142 is located in the chute 141 and is slidably matched with the chute 141. The rope 3 is located in the guide tube 14, one end of the rope 3 is connected to the first winch, and the other end passes through a plurality of sliding rings 140 and is connected to one of the sliding rings 140 at the bottom.

[0030] To avoid the interference of the rope 3, the wire tube is hollow, and a chute 141 is radially penetrated thereon; the sliding ring 140 is in a circular ring structure, and the connecting rod 142 is connected to the sliding ring 140, so that the sliding ring 140 is slidably clamped with the guide tube 14.

[0031] One end of the rope 3 is connected to the lowermost sliding ring 140, and the rope 3 passes through the other sliding rings 140 in sequence. When the rope 3 is pulled upward, the sliding rings 140 will move upward in sequence, and finally the plurality of sealing plates 15 will be folded together in a staggered manner to realize the communication between adjacent two energy storage cabin bodies.

[0032] In some further embodiments, a first motor is provided on the outer wall of the top of the energy storage cabin body, and a first hoisting wheel is arranged on the outer wall of the top of the energy storage cabin body; there is also a second motor, the second motor is arranged on the outer wall of the bottom of the energy storage cabin body, a second hoisting wheel is provided at the transmission end of the second motor, and the second hoisting wheel is connected to a sliding ring 140 located at the bottom through a rope 3.

[0033] To ensure that the barrier door can be opened and closed more promptly, a first motor and a second motor are specially provided. The first motor is arranged on the outer wall of the top of the energy storage cabin body and is connected to the sliding ring 140 at the bottom through a rope 3. The second motor is arranged on the outer wall of the bottom of the energy storage cabin body and is also connected to the sliding ring 140 at the bottom through a rope 3; the ropes 3 are all located in the wire conduits.

[0034] In some further embodiments, a first sliding part 12 is provided in the installation area 1, a second sliding part 13 is slidably arranged on the first sliding part 12, the second sliding part 13 is slidably clamped with the first sliding part 12, an installation plate 10 is provided on the second sliding part 13, and the energy storage unit is arranged on the installation plate 10; a nut slider 110 is provided at the bottom of the installation plate 10, and a screw rod 11 is rotatably arranged in the area below the installation plate 10 of the energy storage cabin body, and the nut slider 110 is in threaded cooperation with the screw rod 11.

[0035] The installation plate 10 is slidably arranged in the installation area 1 through the first sliding part 12 and the second sliding part 13, and the installation plate 10 is driven by the screw rod 11 and the nut slider 110. The rotation of the screw rod 11 can be transmitted by a servo motor. When the screw rod 11 rotates, the nut slider 110 will drive the installation plate 10 to move back and forth under the action of the screw rod 11, so as to realize the movement of the energy storage unit.

[0036] In some further embodiments, a plurality of quick-insert electrical connection blocks 2 are provided at the bottom of any installation area 1. The two ends of the quick-insert electrical connection blocks 2 are respectively located inside and outside the energy storage cabin body, and electrical connection jacks are provided at both ends, and the openings of the electrical connection jacks face the opening of the energy storage cabin body.

[0037] The main function of the quick-insert electrical connection block 2 is to quickly disconnect the connection between the energy storage unit and the energy storage cabin body when the installation plate 10 slides outwards.

[0038] In some further embodiments, several quick-insert electrical connection blocks 2 are arranged in a staggered manner along the arrangement direction of the safety area.

[0039] The quick-insert electrical connection blocks 2 are arranged in a staggered manner along the arrangement direction of the safety area to distinguish between multiple wire harnesses as much as possible and reduce the risk of winding between the connection lines at the same time.

[0040] In a second aspect, a control system is further provided for the thermal runaway protection device of the energy storage cabin body described above, including a sensor assembly, a processor, and a controller. The sensor assembly is electrically connected to the controller; the sensor assembly is disposed in any one of the installation areas 1, and the processor is electrically connected to the controller by an electrical signal.

[0041] In some further embodiments, the sensor assembly includes a temperature sensor, a smoke sensor, and a CO sensor.

[0042] The temperature sensor is used to monitor the temperature in any one of the safe areas, the smoke sensor is used to monitor the smoke concentration in any one of the safe areas, and the CO sensor is used to monitor the CO concentration in any one of the safe areas, so as to comprehensively judge the fire situation in the safe area to drive the sliding of the mounting plate 10 and the lowering of the barrier door.

[0043] The first motor and the second motor are both electrically connected to the controller.

[0044] In some other embodiments, a sprinkler pipeline can also be provided to extinguish the fire in case of a fire. It should be noted that the sprinkler mechanism of the sprinkler pipeline is already relatively common in the art and is prior art, so it will not be elaborated in this embodiment.

[0045] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. The thermal runaway protection device of the energy storage compartment is characterized by: It comprises an energy storage cabin body, wherein a plurality of installation areas (1) are provided in the energy storage cabin body, and energy storage units are slidably provided in the installation areas (1) along the opening direction of the energy storage cabin body; a normally open barrier component is provided between two adjacent installation areas (1); and the normally open barrier component is configured to be able to block two adjacent installation areas (1) when an explosion occurs in one of the installation areas (1).

2. The thermal runaway protection device for the energy storage compartment according to claim 1, characterized in that: The normally open barrier assembly comprises a guide tube (14) and a barrier door, the guide tube (14) being vertically arranged along the height direction of the energy storage cabin body, and the barrier door being slidably arranged along the guide tube (14).

3. The thermal runaway protection device for the energy storage compartment according to claim 2, characterized in that: The guide tube (14) is provided with a plurality of sliding rings (140) on the sliding sleeve, and one of the sliding rings (140) located at the bottom is connected to the first winch wheel at the top of the energy storage cabin body via a rope (3); the barrier door comprises a plurality of sealing plates (15) hinged end to end in sequence; the hinge between two sealing plates (15) is hinged to the sliding ring (140); and one of the sliding rings (140) connected to the rope (3) is hinged to the lower edge of one of the sealing plates (15) located at the bottom.

4. The thermal runaway protection device for the energy storage compartment according to claim 3 is characterized in that: A slide groove (141) is radially penetrated in the guide tube (14), and the slide groove (141) extends along the length direction of the guide tube (14); a connecting rod (142) is provided on the sliding ring (140), and the connecting rod (142) is located in the slide groove (141) and slidingly cooperates with the slide groove (141); the rope (3) is located in the guide tube (14), one end of the rope (3) is connected to the first winch wheel, and the other end passes through a plurality of the sliding rings (140) and is connected to a sliding ring (140) located at the bottom.

5. The energy storage cabin thermal runaway protection device according to claim 4, characterized in that: The top outer wall of the energy storage cabin body is provided with a first motor, and the first winch wheel is arranged on the top outer wall of the energy storage cabin body; the second motor is also provided, and the second motor is arranged on the bottom outer wall of the energy storage cabin body, and the transmission end of the second motor is provided with a second winch wheel, and the second winch wheel is connected to a sliding ring (140) located at the bottom through a rope (3).

6. The thermal runaway protection device for the energy storage compartment according to claim 5, characterized in that: A first sliding portion (12) is provided in the installation area (1), a second sliding portion (13) is slidably provided on the first sliding portion (12), the second sliding portion (13) is slidably engaged with the first sliding portion (12), a mounting plate (10) is provided on the second sliding portion (13), and the energy storage unit is arranged on the mounting plate (10); a nut slider (110) is provided at the bottom of the mounting plate (10), a screw rod (11) is rotatably provided on the area of ​​the energy storage compartment body located below the mounting plate (10), and the nut slider (110) is threadably engaged with the screw rod (11).

7. The thermal runaway protection device for the energy storage compartment according to claim 6, characterized in that: A plurality of quick-plug electrical connection blocks (2) are provided at the bottom of any of the installation areas (1), the two ends of the quick-plug electrical connection block (2) being located inside and outside the energy storage compartment body, respectively, and both ends being provided with electrical connection sockets, the openings of the electrical connection sockets facing the opening of the energy storage compartment body.

8. The energy storage cabin thermal runaway protection device according to claim 7, characterized in that: A plurality of the quick-plug electrical connection blocks (2) are arranged in a staggered manner along the arrangement direction of the safety area.

9. A control system, characterized in that: The energy storage compartment thermal runaway protection device used in any one of claims 1 to 8 comprises a sensor assembly, a processor and a controller, wherein the sensor assembly is electrically connected to the controller; the sensor assembly is arranged in any one of the installation areas (1), and the processor is electrically connected to the controller.

10. The control system according to claim 9, characterized in that: The sensor assembly includes a temperature sensor, a smoke sensor and a CO sensor.

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